Process of manufacturing pellicles of oil and oil-paint.



UNITED STATES PATENT OFFICE.

GUSTAV MI j'LLER-NAEGELI, 0F V VADENSWIL, SWITZERLAND, ASSIGNOR TO THE FIRM OF OEL & FARBFILM A.-G., OF WADENSWIL, SWITZERLAIID.

PROCESS OF MANUFACTURING PELLICLES OF OIL AND OIL-PAINT.

No Drawing.

To all whom it may concern:

Be it known that I, GUSTAV MI'iLLER- NAEGELI, a citizenof the Republic of Switzerin Processes of Manufacturing Pellicles of Oil and Oil-Paint; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

According to a known process of manufacturing metallic pellicles and pellicles of paint a soluble agglutinant is applied to a suitable base material, for instance cloth or paper, there being then spread over said agglutinant a layer of metal or paint. Upon moistening the reverse of the paper. or cloth the agglutinant may be again dissolved, so that the pellicle can be separated easily from the base. This known process has, however, the drawback that the pellicles produced are of a small-size and that the manufacturing on a large scale is irrational owing to the intricacy of the process.

This invention relates now to an improved process, which is in many regards much more advantageous than the hereinbefore mentioned process and is so simple as to permit manufacturing such pellicles on a large scale.

The new process. consists in impregnating the one side of a base material with an alkaline solution having the desired degree of strength and in preferably soaking the reverse of said base in oil-varnish. To said alkaline layer there is then applied a layer of oil or oil paint. The action of the oxygen of the air dries this layer of oil or oil paint, so that there is produced a pellicle. The alkaline layer on the under side of the layer of oil or oil paint has the effect to saponify, owing to its caustic action, the under side of the pellicle of paint, thus preventing the latter from sticking to the base material and permitting separation of the pellicle from the base material.

In carrying the improved process into effect I may proceed, for instance, as follows: A strip of strong weakly sized and very absorbent paper, for instance paper used for producing patterns, having a suitable length and width is spread upon a smooth surface and its upper side is impregnated with water-glass,having the nec Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed August 21, 1914. Serial No. 857,910.

essary degree of strength. Then said strip of paper is takenoff said surface and its reverse is soakedin oil-varnish. This has the effect of preventing the strip of paper from absorbin any moisture upon a subsequent renewa of the layer of Water-glass so that it will retain its smooth surface. The paper, which has been impregnated in the hereinbefore described manner',,is then fixed by means of rails to a bottom of suit- "able length and Width. The layer of waterglass comes, thereby to lie upward. Over this layer there is now spread a layer of oil'- varnish or oil paint, which according to circumstances may bemade very thin or which may have a suitable thickness.- If desired, I may add to said oil-varnish or oil paint asiccative liquid, rubber or the like. After 5-10 hours there will be found on the surface of the water-glass a pellicle of oil or oil paint having. a non-adhesive surface, which, owing to the caustic action of the alkaline layer producing a saponification, is prevented from sticking to the base material, so that it may be separated without.

length of time, sothat there can be produced several pellicles of paint without the alkaline layer having to be renewed. On the other hand, the adhesive power of the under side of the pellicles produced according to my improved process makes it possible to unite the separated pellicles to a suitable bottom material by simply pressing them. against this bottom, so that no special adhesive substances of any kind have to be employed.

According to they alkaline degree of strength of the water-glass there can be ob tained a weaker or stronger saponification on the back, of the pellicles of paint. This permits varying accordingly the adhesive ower of said pellicles."

The pellicles of oil and oil paint can be separated from the sam'e base material in strips a-lengthof to 100 meters and a width of 2 to 3 meters without applying and redissolving an intermediate layer.

' very valuable surrogate for the expensive caoutchouc. Owing totheir great -advanin combination with slate-like materials such alkaline solution having the necessary de-.

tages they can be employed for very difierent purposes.- Thus, they may be-used on a large scale in the textilepaperand wallpaper-industry, for instance for producing dustand water-proof bags and every kind of packing materials. Further, they may be attached tofwoven goods of jute, hnen and cotton; they may also be used as washable coveringsforwalls, as a building material as eternite, or. wood, iron and the like. Said pellicles can .also be employed for sanitary purposes and as clothing material, for instance for making aprons, bindings, bed sheets and the like.

What I wish to claim is: 1

1. The process ofmanufacturing pellicles of oil and oilpaint consistingin impregnati'ngone side of a base material with an alkaline solution havingthe necessary degree of strength, applyiing to said alkaline layer a layer of oil varn'rshoroil paint respectively, drying thiSlayer 'an'd finally separating the thereby produced pellicle' ofoil or oil paint respectively, said pellicle being prevented from. adhering to the base material owing tothe causticaction oithe alkaline layer causing a saponification of the under side of the paintpellicle substantially as herein described- 2. The process of manufacturing pellicles of oil and oil paint consisting in impregnating the one side of a base material with an gree-of strength, soaking the other side of said base material in oil varnish, applying to said alkaline layer a layer of oil varnish or oil paint respectively, drying this layer and finally separating the thereby produced pellicle 01f oil or oil paint respectively, said pellicle being prevented from adhering to the base material, owing to-the caustic action of the alkaline layer causing a saponification of the under side of the paint pellicle,- substantially as herein described.

The process of manufacturing pellicles- 9f oil andoil paint, consisting in impregnatmg the one side of a base material with water-glass. having the necessary degree of strength, soaking the other side of said base material in oil varnish or oil paint respectively, drying this layer and finally separating the thereby produced pellicle of oil or oil paint respectively, said pellicle being prevented from adhering to the base material, owing to the caustic action of the water-glass causing a saponification of the as herein described. 5 e.

4. The process of manufacturing pellicles of oil and oil paint consisting in impregnating the one side of a base material with an alkaline solution having the necessary degree of strength, soakin the other side of said base material in oi varnish, applying to said alkaline layer a layer of oil varnish or oil paint respectively, drying this layer, separating the thereby produced pellicle of oil or oil paint respectively, said pellicle beunder side of the paint pellicle, substantially ing prevented from adhering to the base material, owing to the caustic action of the water-glass causing a saponification of the under side of the paint pellicle, and in finally uniting the separated paint pellicle,

whose reverse has become sticky owing to prevented from adhering to the paper,

owing to the caustic action of the alkaline layer causing a saponification of the under sideof the paint pellicle, substantially as herein described.

6. The process of making oil pellicles, which comprises applying water glass .to a surface-Painting said surface with oil paint or oil varnish, and stri ping. the film of paint or varnish, when from the surface. 7

In testimony that I claim. the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

' GUSTAV M'ULLERQNAEGELI.

Witnesses: I I

CARL GUBLnn, Bnm'nn C. Gama.

too 

